.header{
    background: -webkit-linear-gradient(left,#2f5aa2, #96d6f2); /* Safari 5.1 - 6.0 */
    background: -o-linear-gradient(right,#2f5aa2, #96d6f2); /* Opera 11.1 - 12.0 */
    background: -moz-linear-gradient(right,#2f5aa2, #96d6f2); /* Firefox 3.6 - 15 */
    background: linear-gradient(to right,#2f5aa2, #96d6f2); /* 标准的语法 */
    width: 100%;
    height: 4rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    color: #ffffff;
    font-size: 17px;
}
.headerPic{
    margin-left: 1rem;
    width: 4rem;
    height: 4rem;
    background-image: url('../../img/logo.png');
    background-size: 100% 100%;
    
}
.headerTxt{
    font-weight: bold;

}
.backBtn{
    margin-left: 1rem;
    height: 2rem;
    width: 1.2rem;
    background-image: url('../../img/icon_back@3x.png');
    background-size: 100% 100%;
}
.title{
    width: 100%;
    text-align: center;
    padding-right: 3rem;
}
.btnBack{
    display: flex;
    flex-direction: row;
}
.fanhui{
    width: 40px;
    height: 100%;
    margin-top: 0.2em;
    text-align: center;
    display: block; 
}